Sprayer



July 27, w43.

N. A. CONSTANTBNE SPRAYER Filed April ll, 1941 Patented July 27, 1943nichons s. voenstantaiefouith, ltim-in.

Applicants 1an-i111, langs a Solaires(CL-aegee@ Y Thislinvention relateste motor drifvenfhand sprayers vand has special freferenoeto suchparticularly adapted for use spraying of i21- secticide,orthe like. y

prineipal object o the invention isto procoi b e simplestmannerpossible.

.- Ar-lother object is 'to .provide means in sueh -a sprayer whereby theliquid--therein is-uniformly available toV the ril-mp mechanism, ther-^=ffn` matter at wha-tangle the unit is'hel :of `the operator.

AOther objects andY advantages `of the 'inven-y tion will appear in thefollowing description thereof.

Referring now tothe aeooinpanying .drawinf forming part of--th-isapplication and'vlherein like reference characters indieatelike parts:

Figure'- vl.. is a central longitudinal section through one foi theunitsshowingportions thereof infelevation. Y j

rligure 2 fisja section vonfthe line.12 2, of Figure '1. Q

n the hands ined .power and liquid container in am' lVB Celli-1011@elltlfl' `fe. We C11-y @neemt eed @Xi een-r ef, teased@ 2 into theliquid-eliarnberf; thence turned down is fixed pipeeonneotionfto thedischarge pipa` In elohollow eylindrioal'casing', in ivhih' theoperative portions of theunit are a ss embled, and Y in the rearmostendof Athis casing is `instalied in any desired manner ay small 'electric`motor.,

indieated'atthe shaitolfwhich'is'shownla A transverse division wall isillustrated at dadivlding the motoroontaining compartment of the casing'-from the liduid compartment 5, which is closed in any desired manner atits outermostJ de accoznpanyingdrawing, i represents an end as at t5 andprovided with any suitable form Y of lling opening and cap therefor,Vsuch,

`.for example, as shown atl f An auxiliary spider-like head 8 isprovided l within the casing and spaced slightly to the rearl of thewall Il to form one suitable ybearing fol the motor E, while at theopposite end ofV thev motor compartment va similar spider-Eke headldesigned to protrude entirely through the; head 9 and carry thereuponthe runner l2 of the small ,tened tothe end wall a'flatoot Aportion orbracket such as 'in-d1 bythe pump throughfthe pipek I9.

@which amaramenls, Weicheier is, ine-airy desired :manner for eXainp-leasrby the screwsi, p v

i3 's QjrQVifiedWith a tgngntially disposed intake tube i5 and aiportileading Ithrou l), said Wall -intojthe compression chambery l] ofthey pump. 'ust a short -distanoefin vadvaigice of the' @intakelporti-on Y* It is af sCOxld- Smelly; E3 eoxhnuni'eatng withv a luitablefarrangfqment war'd'ly` yin anydesiredmannerA and oiineot'ed asat A lvfto thedob'le Silo-tion pipe HEL-22N, ".thin-whatWewillterrn thebot/tornei the una, reageren as nanna .fis piensen at 23 toinxsure itsordinarily beingl pos ioned lprighta's 'shown Y The valve @entrarci'the' pipe Iit is "11i "at 24 and, bbvjsly fray be'besarmeed'.`ai;.vwlie-V f desired Wanderreisen-ong frein-tte sont'oftheinvention f providing means whereby regardless tion of the unit,if thevalve itY is open,and j there is liquid in the unit, Vit'vvill betaken up AS rvfurther precaution against the ball 21 being abnormallysucked into "the seat 2t, I have'providedonepr more small relieforiilces 4? which provides means'ifor liquid more readily'enteringtheenlargement just ahead of the ball and avoidssueh abnormal tendencytovvardsjfclosing,A inthe event of exoessivevibration or tipping of theunit. That is `to say Athat under'y ordinary circumstances, whether theexhaust nozzle of the unit is pointed upwardly or downwardly or at anyangle there?y between (except when rolled over), there will at all timesbe liquid" available to the pump, and

no'rnatter' which end is upperinost the valve therein williunotion toVguard against thexpump sucking airthrough that end which is'notsubmerged in the liquid, thus, asis obvious, forming a very convenientmeans for insuring adequate of the psi- Y Y Y 2,325,112 l y illustrateda handle "33 xed thereto, preferably liquid supply to the pump under allordinary" n circumstances.

The discharge pipe 30 from the pump extends longitudinally through thechamber 5 and outwardly as clearly shown at the front end thereof Whereit is equipped with anydesired form of spray nozzle 32. f

A novel feature of this ,unit is to be noted in the installationiof thesmall'by-pass pipe 29 leading from the discharge pipe' of the pump`rjust back of the wall4 of the' chamber and to the op@ posite side ofsaid chamber and into same andy along the Vuppermost wall thereoftowards and reasonably close toV theforemost end 6 of the unit; thispipe being secured in any desired manner to the uppermost wall for`example as by a,r slight crook l3l therein which may be spot Weldedl tosaid wall, or held thereagainst by its own inherent spring action, andthereby prevent.` undue vibration of same within the unit. This by-passliquid chamber 5 under slightpressure'and thus preventing`*--anytendency ofi a Vvacuum being formed therein by theactionof the pump.

- The port I8 alsoleadsfinto the compression through'the port'34'intothe discharge pipe 3B. Y

-It is thusevident that byfsuchA` arrangement therein. l

Ycloser to the motor end of the unit, for better *balancing of sameWhether with or without liquid Having thus described my invention, whatI claim and desire to secure by Letters Patent, is:

l j 1.`A motor-driven hand sprayer comprising an elongated casing, adivision Wall therein dividing the same intoa motor and a liquidcompartment, a motorfwithin the motor compartment, a comu pression pumpdrivenfbyrsaidmotorfv means for conducting liquid from the liquidcompartment '-.to saidl compression pump,V means admitting airtorsaid'pump, a discharge from said pump leading through said casing andterminating in a spray nozzle externally thereof, forthe discharge ofmixed liquid and air from said spray nozzle,

flo pipe is forthe purpose of insuring air Within theand a relativelysmall bypass leading from said discharge to said liquid chamber topreventv the formation of avacuum therein.

` 2. Ak motor driven hand sprayer, comprising an elongatedhousing,'afdivision wall therein dividing the sameinto a motor and aliquid compartment, a motor within the motor compartment, a

compression pump driven by said motor, a pipe for conducting liquid fromthe'liquid compartment to said pump, means admitting air to said pump, adischarge fromsaid pump leading to the very accurate control of;combined air and'liquid v may be accomplished by'adjustment of the valve24,*-infthat the liquid in the container, whatever it may be, isadmitted to the purnp through the portjl; or by closing the valve 24andoperating the motor, only air would be dischargedfrom the nozzle andwhich in some linstances may be deffinnigureis illustrated a modifiedform of liquidsupply. to the dischargepipe 30, `and which clearlyy showsamoreidirect connection 35 intermediate of the discharge kpipe'and thetwo inclined pipes 2 l-i-22, said connection'35 terminat-k ing intheL-shaped reducedunozzle like portion V36:wi tl 1inthe discharge pipe 3Qand pointing to thelischa'rge endthereof to result in a `syphon-V eiectwhen air is passing through said dispassing through "the pumpf" f pforwardV end ofsaidjcasing, for the discharge of mixedliquid and'airfromrs'a'id spray nozzle, and

a bypass from' said discharge lto said liquid com-V partment to' providepressure and prevent the.

forming of a Vacuum therein.

v3. A motor drivenhand sprayer, comprising an l Vielongatedhousinggadivision wall therein clivid` Ving the same into a motorand a liquidcompartment, a pair of spider-'like heads'in opposite ends Aof saidmotor housingybearingsZ centrally within said heads, a motorwithinthemotor compartment and having an armature shaft extending within saidbearings, a fan on said shaft between Athe motor and said outer head, acompression pump attached to said outer heady and driven by said motorfor mixing airand liquid 'i therein and 'discharging same "therefromunder pressure, 'means admitting air Ytofsaid pump, meansfor theconducting or liquid from the liquidcompartment to the compression pump,

Y a discharge pipe leadingv from said pump to the f 'fFo'rconvenintmanipulation ci the unit 'Ihave l forward end of ksaid sprayer,and a bypassfrom to provide pressure therein.Y jl g YNICHOLAS1A'.CONSTANTINE;

said :discharge pipe to'said liquid compartment

